DS-CPC5610/5611-R9.0 www.clare.com 1
Features
Full-duple x dat a and voice transmission
Transformerless telephone line isolation interface
Operates at all modem speeds, including V.90 (56K)
3.3 or 5 V po w er supply operation
Half-wave ring detector (CPC5610) or full- w ave ring
detector (CPC5611)
Caller ID signal reception
Small 32-pin SOIC plastic package
Printed-circuit board space and cost savings
Meets PC Card (PCMCIA) height requirements
Easy interface with modem ICs and v oice CODECs
W orldwide dial-up telephone network compatibility
Supplied application circuit complies with the
requirements of TIA/EIA/I S-968 (FCC part 68),
UL1950, UL60950, EN60950, IEC60950,
EN55022B, CISPR22B, EN55024, and TBR-21
CPC5610 and CPC5611 comply with UL1577
TTL compatible logic inputs and output s
Line-side circuit powe red from telephone line
Applications
Satellite and cab le set-t op boxes
V.90 (and other standard) modems
Fax machines
Voicemail systems
Computer telephony
PBXs
Telephony gateways
Embedded modems f or such applications as POS
terminals, automated banking, remote metering,
v ending machines, security, and surveillance
Description
Clare CPC5610 and CPC5611 LITELINKs are silicon
data access arrangement (DAA) ICs used in data and
v oice communication applications to make connec-
tions to the pub l ic switched telephone network
(PSTN). LITELINK uses on-chip opt ical component s
and a few inexpensive external components to form a
complete v oice or high- speed d ata teleph one line
interface.
LITELINK eliminates the need for the large isolation
transformers or capacitors as used in other DAA con-
figurations . It incorporates the required high-voltage
isolation barrier in the surface-mount SOIC package.
The CPC5610 (half-wave ring detect) and CPC56 11
(full-wave ring detect) build upon Clare’s existing
LITELINK line, wit h improved performance and 3.3 V
operation.
Ordering Information
Figure 1. CPC5610/CPC5611 Block Diagram
Part Number Description
CPC5610A 32-pin surface mount DAA with half-wave ring
detect, tubed
CPC5610ATR 32-pin surface mount DAA with half-wave ring
detect, tape and reel
CPC5611A 32-pin surface mount DAA with full-wave ring
detect, tubed
CPC5611ATR 32-pin surface mount DAA with full-wave ring
detect, tape and reel
Transconductance
Stage
2-4 Wire Hybrid
AC/DC Termination
Hookswitch
Isolation Barrier
Vref
AGC
Vref
AGC
Snoop Amplifier
Receive
Isolation
Amplifier
Transmit
Isolation
Amplifier
TIP+
RING-
Transmit
Diff.
Amplifier
Receive
Diff.
Amplifier
CID/
RING
MUX
Tx+
Tx-
OH
RING
CID
Rx+
Rx-
Current Limit Control
AC Impedance Control
VI Slope Control
CSNOOP
CSNOOP
RSNOOP
RSNOOP
CPC5610/CPC5611
LITELINK™ II Silicon Data Access Arrangement (DAA) IC
CPC5610/CPC5611
2 www.clare.com R9.0
1 Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Application Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Resistive Termination Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.1 Resistive Termination Application Circuit Part List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Reactive Termination Application Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.1 Reactive Termination Application Circuit Part List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Using LITELINK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Switch Hook Control (On-hook and Off-hook States) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 On-hook Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.1 Ring Signal Detection via the Snoop Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.2 Polarity Reversal Detection with CPC5611 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.3 On-hook Caller ID Signal Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Off-Hook Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.1 Receive Signal Path. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.2 Transmit Signal Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 DC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4.1 Resistive Termination Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4.2 Reactive Termination Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 AC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5.1 Resistive Termination Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.5.2 Reactive Termination Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 LITELINK Design Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Clare, Inc. Design Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2 Third Party Design Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6 LITELINK Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Manufacturing Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Mechanical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Tape and Reel Packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.3 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.3.1 Moisture Reflow Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.3.2 Reflow Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4 Washing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
CPC5610/CPC5611
Rev. 9.0 www.clare.com 3
1. Electrical Specifications
1.1 Absolute Maximum Ratings Absolute maximum ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at these or
any other conditions beyond those indicated in the opera-
tional sections of this data sheet is not implied. Exposure of
the device to the absolute maximum ratings for an
extended period may degrade the device and affect its reli-
ability.
1.2 Performance
Parameter Minimum Maximum Unit
Isolation Voltage 1500 - VRMS
Continuous Tip to Ring
Current (RZDC = 5.2)150 mA
Total Package Power Dis-
sipation 1W
Operating temperature 0 +85 °C
Storage temperature -40 +125 °C
Soldering temperature - +220 °C
Parameter Minimum Typical Maximum Unit Conditions
DC Characteristics
Operating Voltage VDD 3.0 - 5.50 V Host side
Operating Current IDD - - 10 mA Host side
Operating Voltage VDDL 2.8 - 3.2 V Line side, derived from tip and ring
Operating Current IDDL - 10.5 12 mA Line side, drawn from tip and ring while off-hook
On-hook Characteristics
Metallic DC Resistance 10 - - MTip to ring, 100 Vdc applied
Longitudinal DC Resistance 10 - - M150 Vdc applied from tip and ring to Earth ground
Ring Signal Detect Level 5 - - VRMS 68 Hz ring signal applied to tip and ring
Ring Signal Detect Level 28 - - VRMS 15 Hz ring signal applied across tip and ring
Snoop Circuit Frequency Response 166 - >4000 Hz -3 dB corner frequency @ 166 Hz
Snoop Circuit CMRR - -40 - dB 120 VRMS 60 Hz common mode signal across tip
and ring
Ringer Equivalence - 0.1B - REN
Longitudinal Balance 60 - - dB Per FCC part 68.3
Off-Hook Characteristics
AC Impedance - 600 - Tip to ring, using resistive termination application
circuit
Longitudinal Balance 40 - - dB Per FCC part 68.3
Return Loss - 26 - dB Into 600 at 1800 Hz
Transmit and Receive Characteristics
Frequency Response 30 - 4000 Hz -3 dB corner frequency 30 Hz
Trans-Hybrid Loss - 36 - dB Into 600 at 1800 Hz, with C18
Transmit and Receive Insertion Loss -1 0 1 dB 30 Hz to 4 kHz
Average In-band Noise - -120 - dBm/Hz 4 kHz flat bandwidth
Harmonic Distortion - -80 - dB -3 dBm, 600 Hz, 2nd harmonic
CPC5610/CPC5611
4 www.clare.com Rev. 9.0
Transmit Level - 0 2.2 VP-P Single-tone sine wave. Or 0 dBm into 600 .
Receive Level - - 2.2 VP-P Single-tone sine wave. Or 0 dBm into 600 .
RX+/RX- Output Drive Current - - 0.5 mA Sink and source
TX+/TX- Input Impedance 60 90 120 k
Isolation Characteristics
Isolation Voltage 1500 - - VRMS Line side to host side
Surge Rise Time 2000 - - V/µS No damage via tip and ring
OH and CID Control Logic Inputs
Input Threshold Voltage 0.8 - 2.0 V
High Level Input Current -120 - 0 µAVINVDD
Low Level Input Current - - -120 µAVIN=GND
RING Output Logic Levels
Output High Voltage VDD -0.4 --V
IOUT = -400 µA
Output Low Voltage - - 0.4 V IOUT = 1 mA
Specifications subject to change wi thout notice. All performance characteristics based on the use of Clare, Inc. application circuits. Functional operation of the
device at condit ions beyond those specified here is not implied. Specification conditions: VDD = 5V, temperature = 25 °C, unless otherwise indicated.
Parameter Minimum Typical Maximum Unit Conditions
CPC5610/CPC5611
Rev. 9.0 www.clare.com 5
1.3 Pin Description Figure 2. Pinout
Pin Name Function
1 VDD Host (CPE) side power supply
2 TXSM Transmit summing junction
3TX- Negative differential transmit signal to DAA
from host
4TX+ Positive differential transmit signal to DAA from
host
5 TX Transmit differential amplifier output
6 REFM Internal voltage reference
7 GND Host (CPE) side analog ground
8OH Assert logic low for off-hook operation
9RING Indicates ring signal, pulsed high to low
10 CID Assert logic low while on hook to place CID
information on RX pins.
11 RX-
Negative differential analog signal received
from the telephone line. Must be AC coupled
with 0.1 µF.
12 RX+
Positive differential analog signal received from
the telephone line. Must be AC coupled with
0.1 µF.
13 SNP+ Positive differential snoop input
14 SNP- Negative differential snoop input
15 RXF Receive photodiode amplifier output
16 RX Receive photodiode summing junction
17 VDDL Power supply for line side, regulated from tip
and ring.
18 RXS Receive isolation amp summing junction
19 RPB Receive LED pre-bias current set
20 BR- Bridge rectifier return
21 ZDC Electronic inductor and DC current limit
22 DCS2 DC feedback output
23 DCS1 V to I slope control
24 REFB 0.625 Vdc reference
25 GAT External MOSFET gate control
26 NTS Receive signal input
27 BR- Bridge rectifier return
28 TXSL Transmit photodiode summing junction
29 ZNT Receiver impedance set
30 ZTX Transmit transconductance gain set
31 TXF Transmit photodiode amplifier output
32 REFL 1.25 Vdc reference
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDD
TXSM
TX-
TX+
TX
REFM
GND
OH
RING
CID
RX-
RX+
SNP+
SNP-
RXF
RX
REFL
TXF
ZTX
ZNT
TXSL
BR-
NTS
GAT
REFB
DCS1
DCS2
ZDC
BR-
RPB
RXS
VDDL
CPC5610/CPC5611
6 www.clare.com Rev. 9.0
2. Application Circuits
LITELINK can be used with telephone networks world-
wide. Some pub lic telephone netw orks, notab ly in
North America and Japan require resistive line temri-
nation. Other telephon e netw orks in Europe and else-
where require reactive line termination.
The application circuits belo w address both line termi-
nation models. The rea ctive termination application
circuit (see Section 2.2 on page 8) describes a TBR-21
implementation. This circuit can be adapted easily for
other reactiv e termination needs. Worldwide applica-
tion of LITELINK is described more fully in Clare appli-
cation note AN-147, Worldwide Application of LITELINK.
2.1 Resistive Termination Application Circuit
Figure 3. Resistive Termination Application Circuit Schematic
1This design w as tested and found to co mply with FCC Part 68 with this
part. Other compliance requirements ma y require a different part.
2Higher-noise pow er suppl ies ma y re quire substit ution of a 220 µH inductor,
Toko 380HB-2215 or simi lar. See the Power Quality section of Cla re applica-
tion note AN-146, Guidelines for Effective LITELINK Designs for more infor ma-
tion.
3Optional for enhanced trans-hybrid loss, see “Trans-Hybrid Loss” on page 16.
1
2
+
-
OH
RING
CID
TX+
RX+
TX-
RX-
3.3 or 5 V
C13 0.1
C14 0.1
C2 0.1
C3 0.1
C4 0.1
R1 (R ) 80.6K 1%
TX
R23
10²
-BR
-BR
-BR
TIP
RING
U1
LITELINK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDD
TXSM
TX-
TX+
TX
REFM
GND
RX-
RX+
SNP+
SNP-
RXF
RX
OH
RING
CID
REFL
TXF
ZTX
ZNT
TXSL
BR1-
NTS
GAT
REFB
DCS1
DCS2
ZDC
BR2-
RPB
RXS
VDDL
DB1
SIZB60
600V_60A
SP1
P3100SB
¹
-BR
-BR
A
A
A
C9
0.1
C16
10 FB1
600
200 mA
C1
1
R5 (R )
42.2K
1%
TXF
R13
(R )
1M
1%
NTS
C10
0.01
500V
R15 (R ) 1.69M 1%
DCS2
R14
(R )
47
GAT
R20
(R )
2
VDDL
R21 (R )
1%
DCS1B
6.2 M
R22 (R )
6.8 M 1%
DCS1A
C12 (C )
0.027
DCS
R2
(R )
127K
1%
RXF
R3
(R )
1.5M
1%
SNPD
C7
(C )
220pF
2000V
SNP-
C8
(C )
220pF
2000V
SNP+
R6 (R )
1.8M 1/10W 1%
SNP-2
R44 (R )
1.8M 1/10W 1%
SNP-1
R7 (R )
1.8M 1/10W 1%
SNP+2
R45 (R )
1.8M 1/10W 1%
SNP+1
R4
(R )
68.1
1%
PB
R8 (R )
200K 1%
HTX
R9 (R )
200K 1%
HNT
-BR
NOTE: Unless otherwise
noted, all resistors are in
Ohms, 5%. All capacitors
are in microFarads.
Q1
CPC5602C
R10
(R )
301
1%
ZNT
R18
(R )
150
1%
ZTX
R12 (R ) 1M 1%
NTF
R16 (R ) 8.2 1%
ZDC
-BR
-BR
C18³
15 pF
C15
0.01
500V
CPC5610/CPC5611
Rev. 9.0 www.clare.com 7
2.1.1 Resistive Termination Application Circuit Part List
Quantity Reference Designator Description Suppliers
1C1 1 µF, 16 V, ±10%
Panasonic, AVX, Novacap, Murata,
SMEC, etc.
6 C2, C3, C4, C9, C13, C14 0.1 µF, 16 V, ±10%
2C7, C81220 pF, 2 kV, ±5%
2C10, C1510.01 µF, 500 V, ±10%
1 C12 0.027 µF, 16 V, ±10%
1C16 10 µF, 16 V, ±10%
1 C18 (optional) 15 pF, 16V, ±10%
1 R1 80.6 k, 1/16 W, ±1%
Panasonic, Electro Films, FMI, Vishay,
etc.
1 R2 127 k, 1/16 W, ±1%
1 R3 1.5 M, 1/16 W, ±1%
1 R4 68.1 , 1/16 W, ±1%
1 R5 42.2 k, 1/16 W, ±1%
4R6, R7, R44, R4511.8 M, 1/10 W, ±1%
2 R8, R9 200 k, 1/16 W, ±1%
1 R10 301 , 1/16 W, ±1%
2 R12, R13 1 M, 1/16 W, ±1%
1R14 47 , 1/16 W, ±5%
1 R15 1.69 M, 1/16 W, ±1%
1 R16 8.2 , 1/16 W, ±1%
1 R18 150 , 1/16 W, ±1%
1R20 2 , 1/16 W, ±5%
1 R21 6.2 M, 1/16 W, ±1%
1 R22 6.8 M, 1/16 W, ±1%
1R23 10 , 1/16 W, ±5%, or 220 µH inductor
1 FB1 600 , 200 mA ferrite bead Murata BLM11A601S or similar
1 DB1 SIZB60, 600 V, 60 A bridge rectifier Shindengen, Diodes, Inc.
1 SP1 350 V, 100 A Sidactor Teccor, ST Microelectronics, TI
1 Q1 CPC5602 FET Clare
1 U1 CPC5610 LITELINK
1Through-hole components offer significant cost savings over SMT.
CPC5610/CPC5611
8 www.clare.com Rev. 9.0
2.2 Reactive Termination Application Circuit
Figure 4. Reactive Termination Application Circuit Schemat ic
1This design w as tested and found to co mply with FCC Part 68 with this
part. Other compliance requirements ma y require a different part.
2Higher-noise pow er suppl ies ma y re quire substit ution of a 220 µH inductor,
Toko 380HB-2215 or simi lar. See the Power Quality section of Cla re applica-
tion note AN-146, Guidelines for Effective LITELINK Designs for more infor ma-
tion.
1
2
+
-
OH
RING
CID
TX+
RX+
TX-
RX-
3.3 or 5 V
C13 0.1
C14 0.1
C2 0.1
C3 0.1
C4 0.1
R1 (R ) 80.6K 1%
TX
R23
10²
-BR
-BR
-BR
TIP
RING
U1
LITELINK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDD
TXSM
TX-
TX+
TX
REFM
GND
RX-
RX+
SNP+
SNP-
RXF
RX
OH
RING
CID
REFL
TXF
ZTX
ZNT
TXSL
BR1-
NTS
GAT
REFB
DCS1
DCS2
ZDC
BR2-
RPB
RXS
VDDL
DB1
SIZB60
600V_60A
SP1
P3100SB
¹
-BR
-BR
A
A
A
C9
0.1
C16
10 FB1
600
200 mA
C1
1
R5 (R )
42.2K
1%
TXF
R13
(R )
1M
1%
NTS
C10
0.01
500V
R15 (R ) 1.69M 1%
DCS2
R14
(R )
47
GAT
R20
(R )
2
VDDL
R21 (R )
1%
DCS1B
6.2 M
R22 (R )
6.8 M 1%
DCS1A
C12 (C )
0.027
DCS
R2
(R )
127K
1%
RXF
R3
(R )
1.5M
1%
SNPD
C7
(C )
220pF
2000V
SNP-
C8
(C )
220pF
2000V
SNP+
R6 (R )
1.8M 1/10W 1%
SNP-2
R44 (R )
1.8M 1/10W 1%
SNP-1
R7 (R )
1.8M 1/10W 1%
SNP+2
R45 (R )
1.8M 1/10W 1%
SNP+1
R4
(R )
68.1
1%
PB
R8 (R )
200K 1%
HTX
R9 (R )
200K 1%
HNT
-BR
NOTE: Unless otherwise
noted, all resistors are in
Ohms, 5%. All capacitors
are in microFarads.
Q1
CPC5602C
R10
59
1%
(R )
ZNT1
R18
29.4
1%
(R )
ZTX1
R11
(R )
169
1%
ZNT2
R19
84.5
1%
(R )
ZTX2
C20
(C )
0.68
ZNT
C11
(C )
1.5
ZTX
R12 287K 1%(R )
NTF
R16 22.1 1%(R )
ZDC
-BR
-BR
-BR
C15
0.0022
500V
-BR
Q2
MMBT4126
R74
10
1%
-BR
C32
0.47
CPC5610/CPC5611
Rev. 9.0 www.clare.com 9
2.2.1 Reactive Termination Application Circuit Part List
Quantity Reference Designator Description Supplier
1C1 1 µF, 16 V, ±10%
Panasonic, AVX, Novacap, Murata,
SMEC, etc.
6 C2, C3, C4, C9, C13, C14 0.1 µF, 16 V, ±10%
1 C5 0.47 µF, 16 V, ±10%
2C7, C81220 pF, 2 kV, ±5%
2C1010.01 µF, 500 V, ±10%
1 C11 1.5 µF, 16 V, ±10%
1 C12 0.027 µF, 16 V, ±10%
1C1510.0022 µF, 500 V, ±10%
1C16 10 µF, 16 V, ±10%
1 C20 0.68 µF, 16 V, ±10%
1 C32 0.47 µF, 16 V, ±10%
1 R1 80.6 k, 1/16 W, ±1%
Panasonic, Electro Films, FMI, Vishay,
etc.
1 R2 127 k, 1/16 W, ±1%
1 R3 1.5 M, 1/16 W, ±1%
1 R4 68.1 , 1/16 W, ±1%
1 R5 42.2 k, 1/16 W, ±1%
4R6, R7, R44, R4511.8 M, 1/10 W, ±1%
2 R8, R9 200 k, 1/16 W, ±1%
1R10 59 , 1/16 W, ±1%
1 R11 169 , 1/16 W, ±1%
1 R12 287 k, 1/16 W, ±1%
1R13 1 M, 1/16 W, ±1%
1R14 47 , 1/16 W, ±5%
1 R15 1.69 M, 1/16 W, ±1%
1R16 22.1 , 1/16 W, ±1%
1R18 29.4 , 1/16 W, ±1%
1R19 84.5 , 1/16 W, ±1%
1R20 2 , 1/16 W, ±5%
1 R21 6.2 M, 1/16 W, ±1%
1 R22 6.8 M, 1/16 W, ±1%
1R23 10 , 1/16 W, ±5%, or 220 µH inductor
1R74 10 , 1/16 W, ±1%
1 FB1 600 , 200 mA ferrite bead Murata BLM11A601S or similar
1 DB1 SIZB60, 600 V, 60 A bridge rectifier Shindengen, Diodes, Inc.
1 SP1 350 V, 100 A Sidactor Teccor, ST Microelectronics, TI
1 Q1 CPC5602 FET Clare
1 Q2 MMBT4126 Fairchild
1 U1 CPC5610 LITELINK Clare
1Through-hole components offer significant cost savings over SMT.
CPC5610/CPC5611
10 www.clare.com Rev. 9.0
3. Using LITELINK
As a full-featured telephone line interface, LITELI NK
performs the following functions:
DC termination
A C impedance control
V/I slope control
2-wire to 4-wire conversion (hybrid)
Current limiting
Ring detection
Caller ID signal reception
Switch hook
LITELINK can accommodate specific application f ea-
tures without sacrificing basic functionality and perfor-
mance. Application features include, but are not
limited to:
High gain (+3 dBm) oper ation
Pulse dialing
Ground start
Loop start
Parallel telephone off-hook detection (911 feature)
Battery reversal
Line presence
W orld-wide progr ammab le oper ation
This section of the data sheet describes LITELINK
operation in st andard configuration for usual oper a-
tion. Clare off ers addit ional applicat ion inf ormation on-
line (see Section 5 on page 14). These include informa-
tion on the following topics:
Circuit isolation considerations
Optimizing LITELINK performance
Data Access Arrangement architect ure
LITELINK circuit descriptions
Surge protection
EMI considerations
Other specific application materials are also refer-
enced in this section as appropriate.
3.1 Switch Hook Control (On-hook
and Off-hook States)
LITELINK operates in one of two conditions, on-hook
and off-hook. In the on -hook condition t he te lephone
line is available for calls. In the off-hook condition the
telephone line is engaged. Use the OH control input to
place LITELINK in one of these two states. With OH
high, LITELINK is on-hook and ready to make or
receive a call. The snoop circuit is enab led. Assert OH
low to place LITELI NK in th e off -hook st ate. In the off-
hook state, loop current flows through LITELINK and
the system is answering or placing a call.
3.2 On-hook Operation
The LITELINK application circuit leakage current is
less than 10 µA with 100 V across ring and tip, equiv a-
lent to greater t han 10 M on-hook resist ance .
3.2.1 Ring Signal Detection via the Snoop
Circuit
In the on-hook state (OH and CID not asserted), an
internal multiplexer turns on the snoop circuit. This cir-
cuit monitors the telephone line for two conditions; an
incoming ring signal, and caller ID data bursts.
Refer to the application schematic diagram (see Figure
3 on page 6). C7 (CSNP-) and C8 (CSNP+) provide a
high-v oltage isolation barrier between the telephone
line and SNP- and SNP+ on the LITELI NK while cou-
pling A C signals to the snoop amplifier. The snoop cir-
cuit “snoops” the telep hone line cont inuously while
dra w ing no current. I n the LITELINK, ringing signals
are compared to a threshold. The comparator output
f orms the RING signal output from LITELINK. This sig-
nal must be qualified by the host system as a valid
ringing signal. A low level on RING indicates that the
LITELINK ring signal threshold has been exceeded.
F or the CPC5610 (wit h t he half-wave ring detector),
the frequency of the RING output f ollo w s the fre-
quency of the ringing signal from the central office
(CO), typically 20 Hz. The RING output of t he
CPC5611 (with the full-wa ve ring detector) is twice the
ringing signal frequency.
Hysteresis is employed in the LITELINK ring detector
circuit to provide noise imm unity. The setup of the ring
detector comparator causes RING output pulses t o
remain low for most of the ringing signal half-cycle.
The RING output returns high f or the entire negativ e
half-cycle of the ringing signal for the CPC5610. For
the CPC5611, the RING output returns high for a short
period near the zero-crossing of the ringing signal
bef o re re turning low during the positive half -cycle . For
both the CPC5610 and CPC5611, t he RING output
remains high between ringing signal b ursts.
The ring detection threshold depends on the v alues of
R3 (RSNPD), R6 (RSNP-), R7 (RSNP+), C7 ( CSNP-), and
C8 (CSNP+). The value s for these components sho wn
in the typical application circuits are recommended f or
CPC5610/CPC5611
Rev. 9.0 www.clare.com 11
typical operation. The ring detection threshold can be
changed according to the following formula:
Clare Application Note AN-117 Customize Caller ID Gain
and Ring Detect Voltage Threshold is a spreadsheet for
trying different component values in this circuit.
Changing the ring detection threshold will also change
the caller ID gain and the timing of the polarity rev ersal
detection pulse, if used.
3.2.2 Polarity Reversal Detection with
CPC5611
The full-wave ring detector in the CPC5611 makes it
possible t o detect tip and ring polarity reversal using
the RING output. When the polarity of tip and ring
re verses, a pulse on RING indicates t he ev ent. Your
host system must be able to discriminate this single
pulse of appro ximately 1 msec (using the recom-
mended snoop circuit e xternal components) from a
v alid ringing signal.
3.2.3 On-hook Caller ID Signal Processing
On-hook caller ID (CID) signals ar e processe d by
LITELINK b y coupling the CI D data burst through the
snoop circuit to the LITELINK RX output s under con-
trol of the CID pin. In North America, CID data signals
are typically sent betw een the first and second ringing
signal.
Figure 5. On-hook Caller ID Signal Timing in
North America for CPC5610 (with Half-
wave Ring Detect)
In North American applications, follow these steps to
receiv e on- hook caller ID data via t he LITELINK RX
outputs:
1. Detect the first ringing signal outputs on RING.
2. Assert CID low.
3. Process the CID data from the RX outputs.
4. De-assert CID (high or floating).
Note: Taking LITELINK off-hook ( via the OH pin) dis-
connects the snoop path from both the receive outputs
and the RING output, regardless of the state of the
CID pin.
CID gain from tip and ring to RX+ and RX- is deter-
mined by:
where ƒ is the frequency of the CID data signal.
The recommended components in the application cir-
cuit yield a gain 0.27 dB at 200 Hz. Clare App licat ion
Note AN-117 Customize Caller ID Gain and Ring Detect
Voltage Threshold is a spreadsheet for trying different
component values in this circuit. Changing the CID
gain will also change the ring detection threshold and
the timing of the polarity reversal detection pulse, if
used.
F or single- ended snoop circuit out put of 0 dBm, set
the total resistance across the series resistors (R6/
R44 and R7/R45) to 1.4 MΩ.
3.3 Off-Hook Operation
3.3.1 Receive Signal Path
Signals to and from the telephone n etwork appear on
the tip and ring connections of the application circuit.
Receive signals ar e e xtracted from transmit signals b y
the LITELINK two-wire to four-wire hybrid. Next, the
receiv e signa l is converted to infrared light by the
receiv e phot odiode amplif ier and receive path LED.
The intensity of the light is modulated by the receiv e
signal and coupled across the electrical isolation bar-
rier by a reflective dome.
On the host equipment side of t he barrier, the receiv e
signal is converted by a photod iode int o a photocu r-
VRINGPK
750mV
R3
-----------------


2R6R3
+()
21
πfRINGC7
()
2
-------------------------------+=
Caller ID data
RING
CID
First Ring
Signal levels not to scale
Second Ring
2s 500 ms 3s 475 ms 2s
GAINCID dB() 20 6R3
2R6R3
+()
21
πfC7
()
2
-------------------+
-----------------------------------------------------------------
log=
CPC5610/CPC5611
12 www.clare.com Rev. 9.0
rent. The photocurrent, a linear representation of the
receive signal, is amplified and con v erted to a diff eren-
tial v oltage o utput on RX+ and RX-.
Variations in gain are controlled to within ±1 dB by an
on-chip automatic gain control (AGC) circuit, which
sets the output of the photoamplifier to unity gain.
To accommodate single-supply oper ation, LITELINK
includes a small DC bias on the RX outputs of 1.0
Vdc. Most applications should AC couple the RX out-
puts as shown in Figure 6.
LITELINK ma y be used for diff erential or single-ended
output as shown in Figure 6. Single-end ed use will
produce 6 dB less signal output amplitude. Do not
e xceed 0 dBm into 600 (2.2 VP-P) signal input.
Figure 6. Differential and Single-ended Receive
Path Connections to LITELINK
3.3.2 Transmit Signal Path
Connect transmit signals from t he host equipment to
the TX+ and TX- pins of LITELINK. Do not exceed a
signal level of 0 dBm in 600 (or 2.2 VP-P). Differen-
tial transmit signals are converted to single-ended sig-
nals in LITELINK. The signal is coupled to the transmit
photodiode amplifier in a similar manner to the receiv e
path.
The output of the photodiode amplif ier is coupled t o a
v olt age-to-curr ent converter via a transconductance
stage where the transmit signa l modulat es t he tele-
phone line loop current. As in the receive path, gain is
set to unity automatically, limiting insertion loss to 0,
±1 dB.
Figure 7. Differential and Single-ended Transmit
Path Connections to LITELINK
3.4 DC Characteristics
The CPC5610 and CPC5611 are designed for world-
wide application regarding DC characteristics, includ-
ing use under the requirements of TBR-21. The ZDC,
DCS1, and DCS2 pins control the VI slope char act er-
istics of LITELINK. Selecting appropriate resistor val-
ues f or RZDC (R16) and RDCS (R15 ) in the provided
application circuits assure compliance with DC
requirements.
3.4.1 Resistive Termination Applications
LITELINK includes a telephone line current limit fea-
ture that is selectable by selecting th e desired value
for RZDC (R16) using the following formula:
Clare recommends using 8.2 for RZDC in North
America and Japan, limiting telepho ne line current t o
133 mA.
3.4.2 Reactive Termination Applications
TBR-21 sets the telephone line current limit at 60 mA.
To meet this requirement, set R ZDC (R16) to 22. 1 .
See Clare application note AN-146 Guidelines for Effec-
tive LITELINK Designs f or information on FET heat sink-
ing in this application.
RX+
RX-
RX+
RX+
RX
RX-
0.1uF
0.1uF
0.1uF
LITELINK
Host-side CODEC
or Voice Circuit
LITELINK
LITELINK
TXA1
TXA2
-
+
0.1uf
0.1uf
Host CODEC or
Transmit Circuit
Host CODEC or
Transmit Circuit
TX-
TX+
TXA1
-
+
0.1uf
0.1uf TX-
TX+
ICLAmps 1V
RZDC
------------- 0.011A+=
CPC5610/CPC5611
Rev. 9.0 www.clare.com 13
3.5 AC Characteristics
3.5.1 Resistive Termination Applications
North American and Japanese telephone line AC ter-
mination requirements are met with a re sistive 600
AC termination. Receive termination is applied to the
LITELINK ZNT pin (pin 29) as a 301 resistor, RZNT
(R10). A 150 resistor, R18 (RZTX), applied to the
LITELINK ZTX pin (pin 30) sets the corr ect transmit
gain and impedance.
3.5.2 Reactive Termination Applications
Many areas use a single-pole complex impedance to
model the telephone netw ork transmission line char-
acteristic impedance as shown in the tab le below.
Matching a comple x impedance requires the use of
comple x networks on ZNT and ZTX. In order to
accommodate high pow er levels , it is necessary to
modify the transmit and receiv e gain char acteristics of
your LITELI NK implementation. The complex network
on the ZTX pin increases tr ansmit gain by 7 dB. A 7
dB pad may be inserted bef ore t he TX+ and TX- pins
to provide overall unity gain. Similarly, with a complex
network, the ratio of R12 ( RNTF) and R13 (RNTS) must
be modified from 1:1 to 1:.287, which introduces a 7
dB loss in the receive path from tip and ring to ZNT.
4. Regulatory Information
LITELINK can be used to build products that comply
with the requirements of TIA/EIA/IS-968 (formerly
FCC part 68), FCC part 15B, TBR- 21, EN60950,
UL1950, EN55022B, IEC950/IEC60950, CISPR22B,
EN55024, and many other standards . LITELINK com-
plies with the requirements of UL1577. L ITELINK pro-
vides supplementary isolation. Metallic surge
requirements are met through the inclusion of a Sidac-
tor in the application circuit. Longitudinal surge protec-
tion is provided b y LITELINK’s optical-across-the-
barrier technology and t he use of high-voltage compo-
nents in the application circuit as needed.
The inf ormation provided in this document is intended
to inf orm the equipment designer b ut it is not sufficient
to assure proper system design or regulat ory compli-
ance. Since it is the equipment manuf act urer's respon-
sibility to ha ve their equipment properly designed to
conform to all rele vant regulations, designers using
LITELINK are advised to carefully ve rify that their end-
product design complies with all applicable safet y,
EMC , and oth er relevant standards and regulations.
Semiconductor components are not r ated to withstand
electrical ov erstress or electro-static discharges result -
ing from inadequate protection measures at the board
or system le vel.
Line Impedance Model
TBR-21 Australian
Ra 750 820
Rb 270 220
C 150 nF 120 nF
CPC5610/CPC5611
14 www.clare.com Rev. 9.0
5. LITELINK Design Resources
5.1 Clare, Inc. Design Resources
The Clare, Inc. w eb site has a wealth of information
useful f o r designing with LI TELINK, including applica-
tion notes and ref eren ce designs that already meet all
applicable regulatory requirements. LITELINK data
sheets also contains additional application and design
inf ormation. See the following links:
LITELINK datasheets and reference designs
Application note AN-107 LOCxx Series - Isolated Ampli-
fier Design Principles
Application note AN-114 ITC117P
Application note AN-117 Customize Caller-ID Gain and
Ring Detect Voltage Threshold for CPC5610/11
Application note AN-140, Understanding LITELINK
Application note AN-141, Enhanced Pulse Dialing with
LITELINK
Application note AN-143, Loop Reversal Detection with
LITELINK
Application note AN-146, Guidelines for Effective
LITELINK Designs
Application note AN-147, Worldwide Application of
LITELINK
Application note AN-149, Increased LITELINK II Transmit
Power
Application note AN-150, Ground-start Supervision Cir-
cuit Using IAA110
5.2 Third Party Design Resources
The following also contain information useful for DAA
designs. All of the books are available on ama-
zon.com.
Understanding Telephone Electronics, Stephen J. Big-
elow, et. al., Butterworth-Heinemann; ISBN:
0750671750
Newton’s Telecom Dictionary, Harry Ne wt on, CMP
Books; ISBN: 1578200695
Photodiode Amplifiers: Op Amp Solutions , Jerald
Graeme, McG raw-Hill Prof essional Publishing; ISBN:
007024247X
Teccor, Inc. Surge Protection Products
United States Code of Federal Regulations, CFR 47
Part 68.3
CPC5610/CPC5611
Rev. 9.0 www.clare.com 15
6. LITELINK Performance
The f ollo wing g raphs show LITELINK perf ormance
using the North American application circuit shown in
this data sheet.
Figure 8. Receive Frequency Response at RX
Figure 9. Transmit Frequency Response at TX
Figure 10. Receive THD on RX
Figure 11. Transmit THD on Tip and Ring
+3
+2.5
+2
+1.5
+1
+0.5
-0
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
-4.5
-5
Gain
(dBm)
20 50 100 200 500 1K 2K 4K
Frequency (Hz)
+3
+2.5
+2
+1.5
+1
+0.5
-0
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
-4.5
-5
Gain
(dBm)
20 50 100 200 500 1K 2K 4K
Frequency (Hz)
Frequency (Hz)
dB
Frequency (Hz)
dB
CPC5610/CPC5611
16 www.clare.com Rev. 9.0
Figure 12. Trans-Hybrid Loss
Figure 13. Return Loss
Figure 14. Snoop Cir cuit Frequency Response
Figure 15. Snoop Circuit THD + N
Figure 16. Snoop Circuit Common Mode
Rejection
-45
-40
-35
-30
-25
-20
-15
300 800 1300 1800 2300 2800 3300
Frequency (Hz)
THL
(dB)
Without C18 With C18
30
35
40
45
50
55
60
0 500 1000 1500 2000 2500 3000 3500 4000
Frequency (Hz)
Re t u r n
Loss
(dB)
-25
-20
-15
-10
-5
0
5
0 500 1000 1500 2000 2500 3000 3500 4000
Frequency (Hz)
Gain (dBm )
500 1K 1.5K 2K
Hz
2.5K 3K 3.5K 4K
+0
-2.5
-5
-7.5
-10
-12.5
-15
-17.5
-20
-22.5
-25
-27.5
-30
-32.5
-35
-37.5
-40
-42.5
-45
-47.5
-50
-52.5
-55
-57.5
-60
CMRR
(dBm)
5020 100 200 500 1K 2K 4K
Frequency (Hz)
CPC5610/CPC5611
Rev. 9.0 www.clare.com 17
7. Manufacturing Information
7.1 Mechanical Dimensions
Figure 17. Dimensions
Figure 18. Recommended Printed Circuit Board Layout
10.287 + .254
(0.405 + 0.010)
7.493 + 0.127
(0.295 + 0.005) 10.363 + 0.127
(0.408 + 0.005)
4° Max.
32 PL
7.239 + 0.051
(0.285 + 0.002)
0.203
(0.008)
1.016 Typ.
(0.040 Typ.)
0.635 x 45°
(0.025 x 45°)
0.635 + 0.076
(0.025 + 0.003)
0.330 + 0.051
(0.013 + 0.002)
9.525 + 0.076
(0.375 + 0.003)
2.134 Max.
(0.084 Max.) 1.981 + 0.051
(0.078 + 0.002)
0.051 + 0.051
(0.002 + 0.002)
Coplanar to A 0.08/(0.003) 32 PL.
A
DIMENSIONS
mm
(Inches)
11.380
(0.448)
1.650
(0.065)
9.730
(0.383)
0.330
(0.013)
0.635
(0.025)
7.2 Tape and Reel Packaging
Figure 19. Tape and Reel Dimensions
7.3 Soldering
7.3.1 Moisture Reflow Sensitivity
Clare has characterized the moist ure reflow sensitivity
of LITELINK using IPC/JEDEC standar d J-STD-020A.
Moisture uptake from atmosphe ric humidity occurs by
diffusion. During the solder reflow process, in which
the component is attached to the PCB, the whole body
of the component is exposed to high process temper a-
tures. The combination of moist ure upt ake and high
reflow soldering temper atu res may lead to moisture
induced delamination and crac king of the component.
To prevent this, this component must be handled in
accordance with IPC/JEDEC standard J-STD-020A
per the labeled moisture sensitivity le vel (MSL), le vel
3.
7.3.2 Reflow Profile
The maximum ramp rates, dwell times, and tempera-
tures of the assemb ly reflo w profile should n ot e xceed
those specified in IPC/JEDEC standard J-STD-020A,
which were used to determine the moisture sensitivity
le vel of this component.
7.4 Washing
Clare does not recommend ultrasonic cleaning of this
part.
Dimensions
mm
(inches)
330.2 DIA.
(13.00)
Top Cover
Tape Thickness
.102 MAX.
(.004)
12.090
(.476)
Embossed Carrier
Embossment
6.731 MAX.
(.265)
.406 MAX.
(.016)
Top Cover
Tape
3.20
(.126)
2.70
(.106)
7.493 ± .102
(.295 ± .004)
1.753 ± .102
(.069 ± .004)
2.007 ± .102
(.079 ± .004)
1.498 ±.102
(.059 ± .004)
3.987 ± .102
(.157 ±.004)
Feed Direction
11.989 ± .102
(.472 ± .004) 10.897 ± .025
(.429 ± .001) 1.549 ± .102
(.061 ± .004)
10.693 ± .025
(.421 ± .001)
16.002 ± .305
(.630 ± .012)
.050R TYP.
For additional information please visit www.clare.com
Clare, Inc. makes no representations or warran ties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make
changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses or indemnity are expressed or implie d. Except as set
forth in Clare’s Standard Terms and Conditions of Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty relating to its
products, including, but not limited to, the implied warranty of merchantability, fitness for a par ticular purpose, or infringement of any intellectual property right.
The products described in this document are not designed, intended, authorized, or warranted for use as components in systems intended for surgical implant into
the body, or in other applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a
person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice.
Specification: DS-CPC5610/CPC5611-R9.0
Copyright © 2002, Clare, Inc.
All rights reserved. Printed in USA.
6/27/2002